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045144 Periostin (Isoform 5), Recombinant, Mouse, aa24-783, FLAG-Tag (Osteoblast-specific Factor 2, OSF-2, Postn) CAS:

Specifications
Grade
Highly Purified
Swiss Prot
Q62009
Molecular Weight
85
EU Commodity Code
30021019
Shipping Temp
Blue Ice
Storage Temp
4°C/-20°C
Osteoblast-specific Factor 2, OSF-2, Postn

Periostin was originally isolated as a osteoblast-specific factor that functions as a cell adhesion molecule for preosteoblasts and is thought to be involved in osteoblast recruitment, attachment and spreading. Additionally, periostin expression has previously been shown to be significantly increased by both transforming growth factor beta1 (TGF-beta1) and bone morphogenetic protein (BMP-2). Abnormal expression of periostin is also linked to angiogenesis and metastasis in epithelial tumors.

Sequence
Mouse periostin (aa 24-783) (isoform 5) is fused at the C-terminus to a FLAG®-tag, expressed in CHO cells.
Molecular Weight
~85kD (SDS-PAGE)
Biological Activity
Rescues sphere formation from periostin KO primary tumor cells at 50ng/ml.
Storage and Stability
Lyophilized powder may be stored at -20°C. Stable for 12 months after receipt at -20°C. Reconstitute with sterile ddH2O. Aliquot to avoid repeated freezing and thawing. Store at -20°C. Reconstituted product is stable for 6 months at -20°C. For maximum recovery of product, centrifuge the original vial after thawing and prior to removing the cap. Further dilutions can be made in assay buffer.
Source
Recombinant, CHO cells
Concentration
~0.1mg/ml (after reconstitution)
Form
Supplied as a lyophilized powder in PBS. Reconstitute with 100ul sterile ddH2O.
Important Note
This product as supplied is intended for research use only, not for use in human, therapeutic or diagnostic applications without the expressed written authorization of United States Biological.
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